TY  - BOOK
AU  - Knowles I W ed.
ED  - International Conference on Spectral Theory of Differential Operators( 1981 : Birmingham )
ED  - International Conference on Spectral Theory of Differential Operators
TI  - Spectral theory of differential operators: proceedings
U1  - 515.7242 
PY  - 1981///
CY  - Amsterdam
PB  - North Holland
KW  - Calculus
KW  - Differential operator
ER  -